31. I thought open circuits don't use power. 32. Failures are short circuits, open circuits and degradation failures ( exceeding specified limits of electrical parameters ). 33. The source end of the line is approximately an open circuit due to the high " R" 34. They far extend the time spent underwater as compared to open circuit for the same gas consumption. 35. Protocrystalline silicon with a low volume fraction of nanocrystalline silicon is optimal for high open circuit voltage. 36. It is impossible to make a perfect open circuit , as there will always be some fringing capacitance. 37. Open circuit demand scuba is a 1943 invention by the English-speaking countries, has fallen into secondary use.38. Adding two hydroxy groups to AQDS increases the open circuit potential of the cell by 11 %. 39. Underwater breathing apparatus is restricted to open circuit scuba using compressed atmospheric air as the breathing gas. 40. This open circuit leg was added and a new fan drive system was installed in the 1980s.